Belt



BEL-T Filed June l1. 1925 Jag/72515.?

SH01/uma Patented July 19, 1927.

UNtrEasTATEs PivrENTv OFFICE.

JAMES T. GRIFFIN, OF WINDER, GEORGIA, .ASSIGNOR 'OF FORTY `PER CENT TO FLETCHER C. GRADDICK AND THIRTY-FIVE PERCENT TO HENRY C. HARGROVE,

BOTH OF WINDER, GEORGIA.

BELT.

Application led June 11, 1925. Serial No. 36,507.

This invention relates to an improved belt which is applicable to machinery generally but particularly intended for usewith roving and analogous machines. y y

Heretofore it has been a difcult matter to provide a belt that had sufficient durability and resistance to meet the needs of heavy stress when used in connection with cones'or cone pulleys, in view of the control lead and delivery relatively to the conesy from such heavy trames as are embodied in roving machines', and the belts heretofore used not only lacked the necessary wearing qualities but were also disadvantageously Astretched and thereby materially aiected the resultant work.

' The primary object of the improved belt, therefore, is to provide a device ofthe class specified which is particularly intended to engage driving cones or cone pulleys ot a rovingframe wherein the usual stretching characteristics arereduced to a minimum and features of strength and durability embodied therein, to reduce the cost in the use oi belting. j

A further object of the invention is .to provide an improved belt that is superior to the ordinary leather belt or a belt `formed of other flexible material alone, to replace the usual torni of belt just specified by albeit organization embodying a leather face member to engage the cones or cone pulleys which n is reinforced by a rawhide or similar flexible material stitched to the back of the same and an interposed endless Ychain link be-` tween the face and back members of the belt and held in central position, to positively resist stretching and also at the same time reinforce and strengthen the belt.

l/Vith the foregoing and other objects and advantages in View, the invention consistsl in the construction and arrangement of the several parts which will be more fully here-y inafter described and claimed. n j

In the drawings: f-

Fig. l is an elevation of a portionof va roving machine, showing the cones or cone Vthereof broken away. f

pulleys with the improved belt applied thereto in its preferred use. j

Fig. 2 is a plan viewof a portion of the belton an enlarged scale and having parts Fig. 3 isa longitudinal section through the center of the improved belt, showing a portion thereo'tl curved to illustrate the necessary flexibility and the .adaptability of the reinforcingchain link element to the curvature of the pulleys.

F 4 is a transverse vertical section lon the line 4 at, Fig. 2, showing the back member ot the belt completed. Y

The improved belt comprises three essential elements 5, 6-and 7, the element 5 consisting of a leather strip of suitable dimensions, or a strip of analogous material,which forms the base or bearing part ofthe beltl and directly engages the surface of the cone or cone pulley or other rotating device with which the belt may be used. The element 5, however, is preferably formed ofleather and the element 6 consists of a strip of rawhide having thev edges turned inwardly and secured l by@ stitching or other fastening means as at 8 to the edge portions of the basemember or bearing strip 5 of the belt, as clearly shown by F ig. 4t. By doubling the edges of the rawhide element or strip 6 inwardly, the said rawhide lstrip is elevatedv above the outer Asurface of theelement or leather base strip 5 for the reception of the element 7, which consists of a yplurality of links 8, preferably ofrectangular form, having at oneend of each a joint knuckle or coupling' member 9 with a transverse opening l() therethrough to pivotally embrace or engage the adjacent end cross bar ll of the next succeeding link, this structure being carried out through the whole length of the llinked reinforcing element 7, said'reinforcing element being in' the form of a chain belt of a length equal to the length'of the improved belt organization. vThe rawhide backing or covering or elementv 6 extends over and bears vsnugly `against the pivot knuckles 9 and operates t0 hold the linked reinforcing element 7 in central relation between the elements 5 and 6, so that the several links will have freedom of action but at the same time be held against displacement, especially in view of the downwardly inclined portions of the rawhide backing or element 6 on opposite sides of the element 7. The element 7v will readily liex to conform to the curvature of the completebelt organization in travers-ing the cones or cone pulleys or analogous-.devices By-sloping the. 0p.- posite portions of the` element or rawhide, backing 6 towards the edges of the element or bearing base 5 of the belt organization,- lateral movement or displacement .ot the element 7 will be prevented. The. element-7 composed oi the connected links as eX- plainedv isV not i-nany other manner :secured tothe elements 5 and 6, and when the belt ends are connected to pro-vide an endless device for train-ing over cone pulleys or other analogous movable means, the' belt will be prevented i-rom stretching i-n view of' the presence therein of the metal linkedl elementl 7, and; furthermore, the complete belt organization is greatly strengthened andl reinforced-and as a consequence a belt organization is provided which will materially-resist deterioration and wear,

``In the event after longusage, the belt becomes worn, and particularly the base or contact element 5, the rawhide backing or element 6 may bef detached romthe worn element 5 and the latter replaced by another similar new device andthe remaining parts o'l the belt associatedv therewith as shown, and thu-s economize inbelt constructions of this character, and in fact wear onthe joined portionotthe links olf-the element 7 willL be reduced to a minimum, and the rawhide backing element 6 not only shields the said velement from exterior wear but olfy itself 'will be materially free .'fromqwear. .The knuckle pivot members 9 of the several links serve as meansfor engagement by the rawhide backing element 6 and whereby the linked element 7 isheld in centralv relation to the elements 5 and 6 as hereinbeiiore explained'fwithout interfering in 'the least with the movement 01" the links, to accommodate flexing of the belt as a whole, and furthermore, materially Vobstructing longitudinal: shifting movement or loose action of" the linked elements 7: between the tworelementsjl 5` and 6.

The improved belt organization may be madel iiiany suitable lengths, andthe primal preparation 'of' the same or original associationottl'ie three main elements as specified may be effected at a small cost andA by simple means. lt shoul'dfyalso be understood that the width and-.thickness ofthe improved belt` may be modified'- to adapt the same to various applications and it is proing the elements 5 and 6, though leather and rawhide respectively are preferred in view of their natural durability and strength. l

lVliat is claimed as new is:

l. A belt. ofthe class specified, comprising a base element, a backing element extending fully thereover throughout the length thereof, and a single interposed endless link belt retained centrally and loosely andextending the ful length between the base and backing elements, the saldi link belt being prevented from moving laterally in either i-ldirection, the ,backing-` element being formed with a central bulged enclosing means 'for the link belt throughout the iulli length oil-ith A complete belt and'perrnitting the endless link belt to' move longitudinally within the enclosure thus formed..

2l; Abelt comprising a baseelement, a singlel longitudinal continuous link belt comprising movable partsY joined atftheir extremitiesand l disposedy 'flat upon,y the base element, and a backing element secured at its side portions to the side edge portions oif the base element andextending fullyy over and enclosing the single link belt and engaging portions of" the joined extremities of the said element, the securedvside edge portions of the backing element being roundedV to present smooth surfaces, the backing element havinga central` bulgetlportion with downwardly inclined parts on opposite sides ol the link belt for holding ,the latter in central position against lateral displacement yet movable longitudinally with' the enclosure thus formed.

` 3. A belt comprising a base element, a backing element' and an interposed reinforcingfrelement consisting otr an endless'belt comprising a plurality ol links pivotally connected' at their extremities and, disposed longitudinally between the base and backing elfement, the edge v'portions of the backing element being. inturned and secured to the edge portionsot the base element andthe intermediate part of the backii'ig element extending-over and bearing upon the; pivotally connected' extremities of" the links' 0l the said' reinforcing element andzholding Vthe latico iio

ter in central position between the base and i.

backing elements against lateral displacement.1 but :tree to move, longitudinanlly,r the inturned edge. portions of' the backing element terminCry a non-catching side edge reinforcing thikness for the-belt.

t. A belty ofthe classv specilied, comprising a base element for bearing on the curvedv surfaces of pulleys and the: like a backing- CJI including the same downwardly towards opas a Whole centrally in the said vspace and posite side edges of the base element, and in longitudinal relation to the base and 10 a reinforcing single endless belt consisting backing elements against lateral-movement of a plurality of Chain links having the ends but permitting longitudinal movement of thereof pivotally joined,y the intermediate the endless reinforcing' belt.

portion of the hacking element engaging In testimony whereof I have hereunto set portions of the pivoted ends of the said link my hand.

members and holding the reinforcing belt- JAMES T. GRIFFIN 

